Bismarck, ND: May

31 May 2026: May 2026 averaged 56.7°F in Bismarck, ND, the warmest May since 2025, tied 43rd warmest of 152 (with 1964 and 1877).

May 2026

Mean temperature: 56.7°F; Warmest since 2025; 43rd warmest of 152
Precipitation: 1.78 in; Driest since 2021; 62nd driest of 152

A normal May in Bismarck, ND (1991 to 2020): a mean temperature of 55.1°F, between 52.4°F and 58°F in eight years of ten and 1.99 in of precipitation, between 0.54 in and 5.32 in in eight years of ten.

The mean temperature of every May in Bismarck, ND since 1875: 56.7°F in 2026; the highest is 65.7°F, in 1934.

Normal range, 52.4 to 58°F

Every year, ranked, as a table

Every May in Bismarck, ND from 1875 to 2026, ranked: the mean temperature, the mean high and the mean low from the warmest, the precipitation from the wettest; a year missing more than a tenth of its days is not ranked.

Year	Mean, °F	Rank	High, °F	Rank	Low, °F	Rank	Precipitation, in	Rank
2026	56.7	43	71	31	42.4	74	1.78	91
2025	57.1	38	69.9	41	44.3	41	5.28	8
2024	55.7	57	68.6	57	42.8	65	2.44	60
2023	61.3	6	75.1	7	47.5	7	3.01	40
2022	55	74	67.5	74	42.4	74	1.98	79
2021	55.6	59	69.9	41	41.3	96	1.30	105
2020	55	74	67.9	65	42.1	83	0.61	139
2019	52.2	120	63.3	127	41.2	103	3.25	31
2018	61.4	5	75.6	5	47.2	12	1.60	98
2017	56.9	39	72.5	19	41.3	96	0.25	149
2016	57.2	37	71.7	25	42.6	67	1.96	83
2015	53.9	99	66.2	93	41.6	92	5.31	7
2014	55.8	55	68.6	57	43.1	57	0.85	131
2013	54.7	84	67.8	70	41.7	89	7.37	1
2012	55.2	72	69.1	53	41.3	96	1.98	79
2011	52.4	113	63	129	41.8	86	2.32	65
2010	54.2	94	65.4	106	43.1	57	3.05	37
2009	54.3	89	68.3	62	40.3	115	2.02	75
2008	53	107	66.5	86	39.4	131	1.27	106
2007	57.4	33	69.5	48	45.3	28	5.42	5
2006	57.5	32	71.2	26	43.7	46	1.77	92
2005	53.7	101	65.6	100	41.8	86	2.37	62
2004	53.6	103	65.5	103	41.7	89	1.39	103
2003	54	97	65.7	98	42.4	74	5.26	9
2002	50.3	140	64.9	112	35.7	151	0.52	143
2001	57.8	29	70.6	34	45.1	33	2.00	77
2000	56.6	46	69.7	45	43.5	51	2.73	49
1999	55.9	53	67	81	44.9	35	6.96	3
1998	58	28	71.2	26	44.8	37	1.10	116
1997	54.7	84	69.2	52	40.3	115	0.32	145
1996	52	121	62.8	130	41.1	104	1.62	97
1995	53.3	106	65.6	100	41	105	4.15	19
1994	60	14	74.2	12	45.8	25	0.54	142
1993	55.4	66	69.3	50	41.5	93	2.36	64
1992	58.1	26	73.7	15	42.4	74	1.12	115
1991	57.7	30	68	64	47.4	9	3.34	30
1990	54.8	80	68.9	55	40.7	109	1.65	96
1989	56.2	49	70.6	34	41.8	86	1.92	87
1988	61	7	75.5	6	46.5	20	1.16	112
1987	59.7	17	71.2	26	48.3	6	4.19	18
1986	55.9	53	68.6	57	43.1	57	3.11	36
1985	59.1	22	72.7	18	45.4	27	4.13	20
1984	51.9	122	65.7	98	38	143	0.28	147
1983	50.9	135	64.1	118	37.6	144	1.46	102
1982	54.9	78	64.5	114	45.3	28	3.71	24
1981	54	97	65.8	97	42.3	80	0.90	129
1980	60	14	76.1	4	44	43	1.08	119
1979	50	142	61.4	143	38.6	137	1.07	121
1978	56.9	39	68.6	57	45.2	31	4.65	12
1977	61.7	4	76.2	3	47.2	12	1.09	118
1976	55.6	59	70.6	34	40.5	113	1.08	119
1975	53.8	100	65.4	106	42.3	80	1.81	89
1974	50.5	138	61.2	144	39.8	127	2.68	52
1973	54.1	95	68.5	61	39.7	128	1.77	92
1972	58.1	26	69.9	41	46.3	23	3.16	34
1971	52.4	113	65.1	110	39.7	128	1.34	104
1970	54.3	89	65.6	100	43	60	2.32	65
1969	55.8	55	69.7	45	42	84	1.57	99
1968	49.8	145	61.5	141	38.1	142	2.51	57
1967	49.2	148	62.2	135	36.3	149	1.67	95
1966	53.4	105	67.5	74	39.3	133	0.91	128
1965	54.5	87	66	94	42.9	64	5.18	10
1964	56.7	43	70.1	38	43.4	52	0.90	129
1963	55.3	68	67.3	77	43.3	53	2.61	55
1962	55	74	65.5	103	44.4	39	4.80	11
1961	54.3	89	67.9	65	40.6	112	0.80	132
1960	56.2	49	70	39	42.4	74	2.89	43
1959	52.4	113	64.5	114	40.3	115	2.21	69
1958	59.5	20	75.1	7	44	43	1.02	124
1957	55.1	73	67.6	73	42.5	70	2.77	47
1956	54.9	78	66.4	90	43.3	53	3.83	22
1955	59.3	21	73.4	16	45.2	31	3.21	32
1954	51.7	125	65.2	108	38.3	141	2.01	76
1953	52.3	117	62.7	132	42	84	4.40	15
1952	55.6	59	69.7	45	41.5	93	0.31	146
1951	56.8	41	70.6	34	43	60	1.21	110
1950	51	133	61.9	138	40.2	121	2.89	43
1949	58.4	25	72.3	23	44.5	38	2.15	72
1948	56.5	47	70	39	43	60	0.78	134
1947	51.3	130	65.1	110	37.5	145	0.79	133
1946	51.5	127	63.2	128	39.9	124	1.93	86
1945	49.7	146	62.5	134	36.8	147	0.97	126
1944	60.2	13	73	17	47.4	9	2.45	58
1943	51.5	127	63.6	125	39.3	133	2.05	73
1942	50.6	137	61.8	139	39.4	131	3.04	38
1941	59.6	18	72.5	19	46.7	18	1.03	123
1940	55.6	59	69.8	44	41.3	96	1.04	122
1939	62	3	75	9	49	2	1.57	99
1938	53.6	103	63.9	121	43.3	53	2.45	58
1937	58.9	24	71	31	46.8	17	1.52	101
1936	62.7	2	76.6	2	48.7	3	0.12	150
1935	50.1	141	58.9	149	41.3	96	2.25	68
1934	65.7	1	80.6	1	50.7	1	0.09	151
1933	55.6	59	66.3	91	44.9	35	2.38	61
1932	56.5	47	67.9	65	45.1	33	2.78	46
1931	54.3	89	67.9	65	40.8	107	1.94	85
1930	51.5	127	62.7	132	40.3	115	2.19	70
1929	51.2	132	64	120	38.5	140	2.37	62
1928	60.4	11	74.2	12	46.7	18	0.58	140
1927	49.1	149	57.9	151	40.3	115	7.04	2
1926	59.8	16	72.3	23	47.3	11	2.69	51
1925	55.6	59	69.5	48	41.7	89	1.14	114
1924	49.3	147	62.2	135	36.3	149	0.45	144
1923	56.2	49	68.1	63	44.4	39	1.01	125
1922	57.6	31	67.8	70	47.5	7	2.65	53
1921	54.8	80	66	94	43.6	47	2.72	50
1920	54.8	80	66.5	86	43.2	56	1.27	106
1919	56.1	52	67.9	65	44.2	42	4.06	21
1918	54.3	89	67.2	79	41.3	96	2.03	74
1917	52.6	111	66.5	86	38.6	137	0.26	148
1916	52.8	109	65.2	108	40.5	113	1.95	84
1915	51	133	61.7	140	40.2	121	4.43	13
1914	55.7	57	68.8	56	42.5	70	3.61	26
1913	52.4	113	64.1	118	40.7	109	1.99	78
1912	55.3	68	66.9	82	43.6	47	3.03	39
1911	56.8	41	71.1	29	42.5	70	1.18	111
1910	52.3	117	65.9	96	38.7	136	0.71	137
1909	52.7	110	65.5	103	39.9	124	4.43	13
1908	51.7	125	63.5	126	40	123	2.89	43
1907	45.4	152	58.5	150	32.3	152	1.98	79
1906	50.8	136	60.9	146	40.7	109	5.37	6
1905	50	142	61.5	141	38.6	137	1.87	88
1904	53.7	101	64.8	113	42.6	67	0.77	135
1903	54.5	87	66.7	84	42.4	74	3.20	33
1902	57.4	33	69	54	45.9	24	3.00	41
1901	61	7	74.9	10	47.1	15	0.04	152
1900	61	7	74.9	10	47	16	1.26	108
1899	52.3	117	62	137	42.6	67	4.30	16
1898	53	107	64.4	116	41.5	93	2.65	53
1897	57.3	35	71.1	29	43.6	47	1.10	116
1896	57.3	35	69.3	50	45.3	28	1.98	79
1895	54.7	84	67.1	80	42.2	82	3.80	23
1894	55.5	65	67.3	77	43.6	47	0.77	135
1893	51.8	123	63.9	121	39.7	128	1.26	108
1892	46.3	151	55.4	152	37.2	146	1.79	90
1891	54.1	95	66.9	82	41.3	96	2.92	42
1890	51.3	130	63.7	124	38.9	135	0.57	141
1889	52.5	112	63.9	121	41	105	3.35	29
1888	48.6	150	60.8	147	36.4	148	0.70	138
1887	60.3	12	74.1	14	46.5	20	2.19	70
1886	59.1	22	72.5	19	45.8	25	1.73	94
1885	54.8	80	66.5	86	43	60	0.92	127
1884	55.3	68	66.7	84	43.9	45	2.56	56
1883	50.5	138	61	145	39.9	124	1.15	113
1882	51.8	123	62.8	130	40.8	107	3.46	27
1881	60.5	10	72.5	19	48.5	4	2.27	67
1880	59.6	18	70.7	33	48.5	4	2.76	48
1879	55.4	66	64.3	117	46.5	20	3.67	25
1878	50	142	59.8	148	40.3	115	3.15	35
1877	56.7	43	66.3	91	47.2	12	4.25	17
1876	55.3	68	67.8	70	42.8	65	5.74	4
1875	55	74	67.5	74	42.5	70	3.40	28

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1934	65.7
1936	62.7
1939	62
1977	61.7
2018	61.4
2023	61.3
1988	61
1901	61
1900	61
1881	60.5

Coldest
Year	Mean, °F
1907	45.4
1892	46.3
1888	48.6
1927	49.1
1967	49.2
1924	49.3
1945	49.7
1968	49.8
1979	50
1905	50
More years share the last value

Wettest
Year	Precipitation, in
2013	7.37
1927	7.04
1999	6.96
1876	5.74
2007	5.42
1906	5.37
2015	5.31
2025	5.28
2003	5.26
1965	5.18

Driest
Year	Precipitation, in
1901	0.04
1934	0.09
1936	0.12
2017	0.25
1917	0.26
1984	0.28
1952	0.31
1997	0.32
1924	0.45
2002	0.52

The hottest, coldest and wettest days

Hottest day: 93°F; 26 May 2026
Coldest night: 21°F; 1 May 2026
Wettest day: 0.51 in; 17 May 2026

Every month, season and year

Months

Seasons

Years

Bismarck, ND the day's answers

All-time records

Every answer in words

May 2026 brought 1.78 in of precipitation in Bismarck, ND, the driest May since 2021, 62nd driest of 152.
The hottest day of May 2026 in Bismarck, ND: 93°F on Tuesday 26 May 2026.
The coldest night of May 2026 in Bismarck, ND: a low of 21°F on Friday 1 May 2026.
The wettest day of May 2026 in Bismarck, ND: 0.51 in on Sunday 17 May 2026.